Cartridge.



No, 819,518. PATBNTED MAY 1,1906. H. F. CLARK. CARTRIDGE.

vJLPIPLIOA'I'IOR' FILED JULY 16, 1905 W/ E5555 //\/,\/E 57 M MSSMQ M I W A277 AN6REW u. GRIMAN O0. PHOTD-UYIIOGRAPHERS. WASHINGTON, u a

to lubricate a jacketed bullet, and so far as'I UNITED STATES 'PATENT OFFICE.

HENRY F. CLARK, OF POUGHKEEPSIE, NEW YORK.

CARTRIDGE.

Specification of Letters Patent.

Patented May 1, 1906.

Application filed July 15, 1905. Serial No. 269,786.

To aZZ whom it may concern:

Be it known that I, HENRY F. CLARK, a citizen of the United States, residing at Poughkeepsie, in the county of Dutchess and State of New York, have invented an Improvement in Cartridges, of which the following is a specification.

Heretofore in the manufacture of cartridges for breech-loading firearms numerous constructions have been devised in attempts am aware none of them has been successful practically; and the object ofmy present invention is toeffect this resultthat is to say, to lubricate a metal-jacketed bullet.

In carrying out my invention I employ, .together with a shell and suitable cap, a bullet having a shoulder near its base adapted to fit within the reduced open end of the shell, providing an annular space surrounding the bullet and between the same and the reduced end of the shell, which annular space is filled with a suitable lubricant, and the edge of the shell is then crimped or turned down into contact with the surface of the bullet, thereby providing a closed chamber or compartment for holding the said lubricating material unexposed to external or atmospheric infiuences.

In the drawings, Figure 1 is an elevation of a cartridge embodying my improvement. Fig. 2 is a central longitudinal section of the I same; and 'Fig. 3 is a section on line x at,

, be 0nd said shoulder 3.

1 iii Flg. 2.

a. designates a shell rovided at its closed end with a cap 2, and at the opposite end there is a reduced ortion b.

c is a bullet having a slightly-enlarged base 0?, adapted to fit appreciably within the re duced end 6 of the shell, the base (1 providin a shoulder 3, and after the bullet is inserte in the shell the desired distance an annular space is produced between that portion of the bullet adjacent to the shoulder 3 and that portion of the reduced end I) which extends This annular space 1 with a suitable lubricant 4such, for instance, as tallow-and the edge 5 of the reduced portion of the shell I) is preferably crimped or rolled in tightly against the surface of the bullet, thereby inclosing the lubricant in an annular compartment whose walls are the surface of the bullet and the reduced end portion 6 of the shell and whose ends are the shoulder 3 and the inturned end 5 of the said reduced portion of the shell.

It will be apparent that with this structure not only is the lubricant protected from all external agencies, but also the powder is protected from the lubricant and all other moisture, and in experimenting proved structure I have found the bullet and arrel to be evenly lubricated, with a resultant reduction of friction and heating and consequent increased efficiency of the firearm.

I claim as my invention 1. A cartridge for small-arms, comprising a shell having a reduced end portion, a bullet having a slightly-enlarged base adapted to fit appreciably within the reduced end of said shell, and a lubricating material filling the annular space between the bullet and reduced end of the shell, and the shoulder formed by the enlarged end of the bullet.

2. A cartridge, comprising a shell having a with this imreduced end portion, a bullet having a slightly-enlarged base adapted to fit appreciably within the reduced end of said shell and a lubricating material filling the annular space between the bullet and reduced end of the shell and the shoulder formed by the enlarged end of the bullet, the edge of said reduced end being rolled down on the surface of the bullet to form a chamber in which said lubricating material is inclosed.

3. A cartridge for small-arms comprising a shell having a reduced end portion, a bullet having a slightly-enlarged base adaptedto fit a preciably within the reduced end of said sl ell, and the free edge of the reduced portion contacting with cating material filling the annular space between the bullet and the reduced end of the hell and the shoulder formed by the enlarged end of the bullet.

Signed by me this 6th day of July, 1905.

HENRY F. CLARK.

the bullet, and a lubri- I 

